Single ball, small volume, light weight, small exhaust flow.
This air vent is used at the highest point of the sewage pipeline or where air is closed to exclude sewage pipe gas, thereby clearing the pipeline for normal operation. If the power is off or the pump stops, there will be negative pressure inside of pipeline. It may happen by accident or break. Now the exhaust valve and air suction valve will suck air speedily, keeping the pipeline safe.
Features:
Connection type: flanged RF
Ball type: single ball
Size: DN50 to DN200
Pressure: PN10, PN16
Material:
| Part Name | Material |
| Body | Ductile Iron |
| Cap | Carbon Steel |
| Ball | SS201/SS304 |
| Seal Ring | NBR |
Dimensions:
| DN | Inch | EN1092-2 | ANSI B16.1 | ||||
| D | K | n-φd | D | K | n-φd | ||
| 50 | 2 | 165 | 125 | 4-19 | 152 | 120.5 | 4-19 |
| 65 | 21/2 | 185 | 145 | 4-19 | 178 | 139.5 | 4-19 |
| 80 | 3 | 200 | 160 | 8-19 | 190 | 152.5 | 4-19 |
| 100 | 4 | 220 | 180 | 8-19 | 229 | 190.5 | 8-19 |
| 150 | 6 | 285 | 240 | 8-23 | 279 | 241.5 | 8-22 |
| 200 | 8 | 340 | 295 | 8-23/12-23 | 343 | 298.5 | 12-22 |
